Amalgamations of homogeneous Riemannian spaces Jozef Tvarožek — 1984 Časopis pro pěstování matematiky
A construction of a CW-decomposition of s-cubes which are manifolds Jozef Tvarožek — 1986 Mathematica Slovaca
A conjecture on Lie algebras admitting a regular automorphism of finite order Eugen Ružický; Jozef Tvarožek — 1985 Mathematica Slovaca